Instruction Manual for the Variable-Stroke Slide Table

Variable Distance Slide Table User Manual

Explanation for finding the origin

Photoelectric switch installation

Motor installation

Precautions for Use

Variable-pitch parameter calculation

1. Locate the origin to explain

Method 1: Using positive and negative limit photoelectric switches

1.1 Install the negative limit photoelectric switch

Turn on the power switch, press the emergency stop button, install the negative limit photoelectric switch, manually rotate the spindle to the minimum distance of the slide table, loosen the set screw of the inductive wheel mechanism, align the light-transmitting notch of the inductive wheel with the soft‑limit protection trajectory line of the negative limit photoelectric switch, and after the photoelectric switch lights up, tighten the set screw of the inductive wheel mechanism.

1.2 Adjust the positive limit photoelectric switch

Rotate the spindle to the maximum distance between the slide and the carriage, adjust the positive limit photoelectric switch so that it illuminates along the soft‑limit travel path, and then tighten the set screws to secure the switch.

1.3 Return to Origin

Release the emergency stop switch and return to the home position at a slow speed.

Method 2: Using the Origin Photoelectric Switch

2.1 Installation of the Negative Limit and Home Position Photoelectric Switches

Turn on the power switch, press the emergency stop button, lock the negative limit photoelectric switch, and lock the home‑position photoelectric switch. Manually rotate the spindle to the minimum distance of the slide table, loosen the sensor‑wheel mounting screw, turn the sensor wheel so that the light‑transmitting notch aligns with the negative‑limit soft‑limit trajectory until the photoelectric switch lights up, then tighten the sensor‑wheel mounting screw.

2.2 Automatic Home Return

Release the emergency stop switch; the machine will return to the home position at a slow, automatic speed.

2.3 Setting the Soft Positive Limit

Manually jog the slide to its maximum stroke and set the soft limit.

Diagram of Automatic Home Positioning

Warning

During machine adjustment, do not allow the slide’s drive-shaft bearing to approach the red‑line zone, as this could damage the pitch‑adjustment module.

2. Precautions

When the slide returns to its home position, the slide guide bearing can only move along the working-angle‑variable lead curve. If the slider‑driven‑shaft bearing exceeds the photoelectric switch’s soft protection zone and enters the warning line, there is a risk of damaging the gear‑shift mechanism.
Variable‑pitch slides differ from linear modules: the slide’s maximum and minimum spacing parameters are pre‑set, and its soft‑limit protection envelope is relatively small. When fixture‑mounting errors result in inaccurate part‑grasping spacing, the only options are to make minor adjustments to the fixture’s position or to use a calibration jig to align the fixture correctly. Motor‑assisted fine‑tuning is limited to motion along the working‑angle trajectory; exceeding the configured maximum rotation angle will damage internal slide components.
The motion trajectory of the slide on the variable‑pitch slide table is shown in Figure 6 and Figure 7, which depict the main spindle development drawing; please examine these figures carefully during machine adjustment or operation.

Schematic diagram of the slider’s motion trajectory

Schematic diagram of the work-angle trajectory line

3. Calculation method for the variable spacing parameters of an equidistant-variable-spacing slide table

Basic Parameters

Maximum spacing: 30 mm, minimum spacing: 10 mm, operating angle: 0°–270°

Pitch variation ratio formula: (Maximum pitch − Minimum pitch) ÷ Working angle

Calculation: (30 - 10) ÷ 270=0.074 mm/°

That is: for every 1° of spindle rotation, the slider spacing changes by 0.074 mm.

Calculation Example

Question:The minimum spacing of 10mm needs to be increased to 20 mm. By how much should the spacing between each pair of sliders be adjusted? What angle must the spindle rotate through?

Calculation steps:

1. Calculate the change in slider spacing: 20mm - 10mm =10mm

2. Calculate the angle by which the spindle needs to rotate: 10mm ÷ 0.074 mm/° =135.13°

Conclusion:When the minimum spacing changes from 10mm to 20 mm, the slider spacing increases by 10 mm, and the spindle must rotate by approximately 135.13 degrees.

Installation method for photoelectric induction switches

Inductive Switch Standard Accessories

photoelectric induction switch

Quantity: 2 pieces

Photoelectric switch mounting plate

Quantity: 1 (standard according to actual scheme)

Induction wheel (sheet)

Quantity: 1-2

Installation method of photoelectric switch

Photoelectric switch installation method 1

The photoelectric induction switch is fixed by the photoelectric switch mounting plate, and the induction wheel rotates synchronously with the main shaft.

Photoelectric switch installation method 2

The photoelectric sensor switch is directly installed on the device, and the sensor is linked with the sliding table.

Photoelectric switch installation method 3

The photoelectric sensor switch is directly installed on the device, and the sensor is linked with the sliding table.

Motor installation method

Motor side connection standard accessories and installation

Synchronous wheel

Quantity: 2 pieces

Synchronous belt

Quantity: 1 piece

Belt protective cover

Quantity: 1 piece

Hexagon Stud

Quantity: 3 pieces

Motor flange plate

Quantity: 1 piece

Side connection installation method

Detailed drawing of side connection installation mode

Direct motor connection standard accessories and installation

Coupling

Quantity: 1 piece

Protective cover

Quantity: 2 pieces

Hexagon Stud

Quantity: 4 pieces

Motor flange plate

Quantity: 1 piece

Direct connection installation method

Detailed drawing of direct connection installation method

Fixed installation method of variable distance sliding table

The sliding table can be fixed by the slider positioning pin and the equipment mounting plate, and supports a variety of installation methods to adapt to different application scenarios.

Precautions for the use of variable pitch sliding table

Please read the instructions and precautions before use.

This product can be installed horizontally, sideways, inverted installation,Vertical installation prohibited。
Parameters such as the stroke and frequency of the slider displacement and the torque center of gravity of the load are important conditions for the selection calculation. Please use the product within the allowable value.
Avoid applying lateral force to the driving shaft, and prohibit additional processing of the driving shaft.
The spacing between the sliders is constant and cannot be moved individually.
The opening and closing of the gap is achieved by the rotation of the motor drive shaft.
This product should be avoided in vibration and shock environment to ensure performance, accuracy and service life.
The motor, motor flange and sensor are optional parts, which need to be noted when purchasing.
This product must be installed on a supporting workpiece with sufficient rigidity.
This product in the installation and use of the process should avoid external knock, otherwise it will affect its life, performance.
In order to avoid product damage during use and ensure the safety of operators, it is recommended to increase external protective measures.
Regularly 2 weeks or when the use distance is 100km, a small amount of lubricating oil should be added to the guide rail.. If it is not replenished in time, there is a risk of the slider being stuck.
Please do not manually disassemble and assemble the precision component mechanism, and there is no warranty for disassembly and assembly.

Notes for Variable-pitch Slide Adjustment

The motor output power must meet the maximum torque requirement of the variable‑pitch slide.
The counterweights at each slide station shall not exceed the load limit and should be distributed as symmetrically and evenly as possible.
The center of gravity shall not deviate beyond twice the slider’s dimensions for moments in any direction.
Workpieces that have shifted during setup or operation must not collide with one another.

Technical Information on the Variable-Stroke Slide Stage

Project	Content
1. Product Name
2. Slide table model
3. Spindle rotation angle
4. Spindle working angle
5. For every 1-degree rotation, the center distance between slider gaps changes.